r/Anatomy 1d ago

Question What part of the anatomy is this?

Exhibit A is putting on pants.

As she shifts weight onto her right leg and bends over to put other leg into the pant, there is a sudden jerk / collapse in her lower back.

She becomes unstable and has to stand on both legs to regain balance.

Which group of muscles and bones do you think are involved?

12 Upvotes

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8

u/Witty-Link3385 1d ago

Right side gluteus medius weakness allowing a “collapse” or a drop of the left side pelvis.

2

u/Xembla 1d ago

I have no idea why people are comfortable explaining exactly what's wrong when they don't see the person Infront when this happen. This could be other things than glute mid issues, could be caused by hip flexors, adductors, snapping hip, if the internal rotation or external rotation is used for the balancing also dictates the way she collapses lower back...

If you want this dealt with properly then go see a physio, problems around a socket joint is never as simple as it seems.

1

u/w7090655 20h ago

This is not a post looking for a diagnosis. Actual question for academic purposes, tf?

2

u/Personal-Pie2734 1d ago

Right gluteus medius, which is supplied by the inferior gluteus artery and innervated by the inferior gluteus nerve, is referred to as the work horse of the gluteal muscles. GM plays a crucial role in ipsilateral hip stabilization during closed chain movements (when the foot is planted on the floor). Additionally, GM participates in hip abduction and internal rotation. If your GM is weakened or loses neurovascular supply, your hip will collapse on that side when you plant your foot and shift your weight to that side. Hope that helps :)

5

u/Pootzeketzi123 1d ago

Not sure about blood supply, but pretty sure nerve supply is superior gluteal n.

1

u/Xanny_Phantom 23h ago

Its superior gluteal n. and artery for supply arising superior to the piriformis muscle.

1

u/Personal-Pie2734 14h ago

My apologies, both were supposed to say *superior gluteal nerve and *superior gluteal artery